Gray looked a bit sluggish compared to my memories of Notre Dame. He should steadily improve. I'd like to see him lose maybe 5-7 pounds to compensate for the decline based on the leg injury. Then once the leg is closer to full strength you can regain the weight.
Neither one is classic explosive, as others have pointed out. I'd like to see Bumphis operate in press coverage and tight quarters to get a better feel for him. At Mississippi State the offense sprung him free all the time, like last week.
Of all the players we've signed in free agency over the years, I'd say Chad Bumphis is the least surprising to make a quick impact. I remember sampling that thread on the night the draft ended and being shocked that Bumphis hadn't been drafted and we managed to sign him. Several of us pinpointed him quickly in that thread. I was watching PGA and LPGA golf that afternoon and had just assumed somebody had drafted Bumphis in the late rounds. Still hard to figure how he went unclaimed.